| Limit (cost=64.43..64.45 rows=10 width=195) |
| -> Sort (cost=64.35..64.81 rows=182 width=195) |
| Sort Key: s.created_at |
| -> HashAggregate (cost=56.78..58.60 rows=182 width=195) |
| Group Key: s.id, u.id |
| -> Hash Join (cost=8.07..55.87 rows=182 width=195) |
| Hash Cond: (s.head_of = u.id) |
| -> Seq Scan on tbl_tasks s (cost=0.00..44.58 rows=1191 width=191) |
| Filter: (parent_id IS NULL) |
| -> Hash (cost=7.80..7.80 rows=22 width=4) |
| -> Seq Scan on tbl_users u (cost=0.00..7.80 rows=22 width=4) |
| Filter: (department_id = 10) |